- Star Trek: The Motion Picture
- Star Trek II: The Wrath of Khan
- Star Trek III: The Search for Spock
- Star Trek IV: The Voyage Home
- Star Trek V: The Final Frontier
- Star Trek VI: The Undiscovered Country
- Star Trek Generations
Planet whose highly complex culture and taboos led to a first-contact disaster involving the USS Adelphi and Betazed telepath Tam Elbrun, sent as a contact specialist. Capt. Darson and 46 of his crew, including two of Riker's friends from his Academy class, were killed.